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SysTools PST Compress
Tool to Compact & Reduce Outlook PST Data File of Large Size Effectively

(Average Rating 4.7 Based on 118 Reviews)

Quickly Compress Outlook PST files with SysTools Compact PST Files Tool for MS Outlook 2016, 2013, 2010, 2007 & all the below versions. The software to Compress PST files effectively reduces oversized PST files by Extracting & Saving attachments and generates a Log Report displaying the status of compressed Outlook files. Easily Reduce PST file size in bulk with PST File Compact without losing or modifying any data.

  • Compress large PST file size by Removing, Extracting & Saving attachments
  • Option to Compact Outlook PST files size in batch via Compress PST Utility
  • Software Generates a Log Report to show complete PST compaction details
  • Compact PST Files tool supports compression of both ANSI & UNICODE PST file types
  • Shrink PST file size to minimum possible size With No Data Loss
  • MS Outlook Installation is required to reduce PST file size
  • Supports all MS Outlook Versions: Outlook Version (32), 2016 & below
    PST Compression Tool compatible with Outlook 2003, 2007, 2010, 2013 and 2016 (32 bit Versions)
  • PST Compress tool supports Windows 10, 8 (32 / 64 bit ).
    PST File Compression Tool is compatible with Windows 10, 8, 8.1, 7, XP and older version.

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Purchase Now $69 windows 10 & outlook 2016

Free Live Demo - SysTools PST Compress Tool Fully Secured Download Version

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The Software Informer had given SysTools PST Compact Tool 100% safe & secure award for its excellent performance.

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SysTools Compress PST Files application gets 100% clean award by We Suggest Software for providing Ad/Virus/Spyware free solution.

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Software Suggest had given SysTools PST Compress Tool 5 star rating for being the most effective & powerful product to compact Outlook data file.

List of Key Features in SysTools PST Compress Tool

Software to Shrink Outlook PST file, Remove, Extract and Save PST file Attachments

compress large pst file

Compress Large PST File

An ANSI Data file that is about to reach 2 GB is a big concern as this leads to corruption. With this PST Shrinker, you can compact PST files and reduce the size so as to make it easily manageable. PST compact software will extract the attachment and save it as per the requirement.

Options to compress PST files

PST File Compression Options

You can compact Outlook PST in 3 different ways as per your choice:

  • Remove attachments
  • Extract and save attachments
  • Extract, save and compress attachments

remove attachments

Remove PST File Attachments

In order to compact Outlook PST file and compress it, the PST compaction software allows removal of attachments. If you choose this option, the software will extract attachments and remove them permanently. This will compress PST files size and remove the attachments from local machine as well.

extract and save

Extract & Save Attachments

With the help of this option, you can compact large PST file without deleting its attachments. The PST File Compression Tool will extract all attachments found in a data file and save them into a separate folder. You can find the PST file size reduced to a large extent with all attachments saved in a separate folder via PST Compress Tool.

extract save and compress attachments

Extract, Save & Compress Attachments

Using this option you can extract and save the attachments. Besides this, you can also compress PST file attachments to minimize the size of attachments as well. The PST Compact tool will zip all the attachments that are found within a PST file.

show progress report

Show Progress Report

Once you start with PST file compression process, the PST File Compaction Utility will generate a complete export report to compact PST files, together with current progress status. This report includes details like: PST file name, folder name, number of mails found, number of attachments found, and so on.

PST Compress Tool Screenshots

Pictorial Representation of PST File Compact Software to Shrink Outlook PST File

PST Compress tool
Step 1: Download PST Compression Software and "Add PST File"
Remove PST File
Step 2: Click on Remove button to Compact Outlook PST File
select compression options
Step 3: Select Compression Options: Remove and Extract
compress pst files
Step 4: Hit on "Compress" to decrease or reduce PST file size

Watch Live Video of PST Compress

Taped Representation To Compress PST Files of Large Size in Outlook

Download Compact PST Files Software

Try the Demo Version of the Tool to Compress Outlook Data files

PST Compress Software

Size: 1.3 MB Version: 3.1

MD5: 3c4c0b382940af6ed301109cb422baad


Trial Limitations

Trial version of PST Compress tool compacts the initial 5 emails from each folder of a PST File in order to render the preview.

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Installation Uninstallation EULA

System Specifications

System Specifications
  • Hard Disk Space: 5 MB of free hard disk space

Application Prerequisites

  • Microsoft Outlook should be installed and should be configured properly for any valid or dummy profile/account.
  • If you are using Window 10/8.1/8/7 or Vista, then please launch the tool as "Run as Administrator".

Supported Editions

  • Microsoft Windows – 2000, 2003, 2008, XP, Vista, or Windows 7/8/8.1/10, 2008/2012 (32-bit & 64-bit)
  • MS Outlook – Outlook 2000, 2003, 2007, 2010, 2013, 2016 (32 bit)
Frequently Asked Question

How to Compress PST files step by step using this tool?

To Compact & shrink Outlook 2016, 2013, 2010, 2007, 2003, 2002 data file, follow the below mentioned steps:

  • Step 1: Install the PST compaction tool & then go to Start menu >> Programs >> SysTools PST Compact Tool
  • Step 2: Now, select Add file >> Select & Open
  • Step 3: Select the folder to compact PST files & then click on Compress PST >> Browse file >> OK >> Compress PST
  • Step 4: Select an appropriate option among the three options: Remove Attachments, Extract & Save Attachments, Extract ,Save Compress Attachments & then click on Compress
  • Step 5: The software will show the status as "Compress Successfully" .

Is PST file Compact software compatible to compress multiple PST files?

Yes, PST Compact Software is able to downsize multiple PST files.

What is the need to shrink PST file?

With growth in data file size, Outlook becomes slower and after a maximum permissible limit, increase in file size causes PST to be corrupted. Compress PST Files software is the best solution to overcome this problem. It removes/compresses/saves attachments in order to downsize PST file and improve Outlook performance.

Is this PST file compress tool compatible to the Windows 8 OS environment?

Yes, Compact PST files software works smoothly with Windows 10, 8 and all its below versions of the OS.

How long does it take to compact a PST file in Outlook?

It depends upon the size of your Data file. But usually, PST File Compact tool shrinks the file in a very short time span.

Can I compress or reduce PST file without Outlook?

No, Outlook installation is necessary to run this Compress PST Files tool. It should be installed and configured properly on machine. You can install any version of Outlook (32 bit).

Can I compact bulk data files using this software?

Yes, you can add and process multiple PST files to the PST Shrink tool at a time and in a very short duration it will show you precise results.

Does This PST Compact Software decrease the size of PST file?

Software does not reduce the size of PST file directly. It has three options to reduce PST file. You can choose accordingly

  • Remove Attachments
  • Extract & Save Attachments
  • Extract, Save & Compress Attachments

Is there a size limitation set for the Outlook data file by the PST File Compress tool?

No, software can decrease Outlook PST file of any size without showing any performance issues. It can compact both ANSI & UNICODE type PST files.

Does software make any changes to the original PST file?

No, Compress PST software only reads the original PST file & it does not produce any type of changes in this source PST file.

Is there any chance of data loss involved while using this software?

No, PST Compact tool is built with the best set of algorithms & latest technology so there is no chance of data loss involved with the usage of this tool. With the absence of malware, spyware, or adware along with no performance risks involved, it is completely safe & secure to use this tool.

PST Compress Tool Order Now

Get an Overview of PST Compact Tool Features - DEMO & Licensed Version

Features DEMO Version FULL Version
Add PST File & Folder
Remove Selected PST Files
Support All Outlook Versions, (32 bit) 2016 and Below
Windows 10, 8 & All Other Previous Windows Version Supported
Three Compression Options
Batch item compression First 5 Items / PST File
Compress data Files 5 Items / Folder
Cost FREE $69
SysTools PST Compress Tool Order Now
Full Version



PST Compress






OFFER Valid Till 30th Nov

PST Compress + Outlook Recovery + PST Password Remover




$167   $99

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Note: The final price of software may be subject to sales tax depending upon your residence. The "Estimated Sales Tax" is displayed at the time of Check Out when you confirm the order.

Software will get delivered on your registered email id, within few minutes after placing the order.

Electronic Delivery: The delivery of product is automated. You will receive an email containing both the link to download the product and the activation key within few minutes after payment confirmation.

Purchase Order: You can place the order via Purchase Order(PO) Click Here

amazon        CR        NSIC         CIO       BBB
License Information Personal License Business License Enterprise License
File Limitation Compress Unlimited PST Files Compress Unlimited PST Files Compress Unlimited PST Files
Bulk Conversion Support
Free Product Updates
30 Day Money Back* Yes, Money is refundable Yes, Money is refundable Yes, Money is refundable
Features in Demoware & Commercial License

An Overview At The Contrast between Trial & Purchase License

PST Compress Tool DEMO Version FULL Version Bundle Offer
Add Outlook data File
Compress Huge PST Files
Reduce the Size of Multiple data Files
Save Compressed PST File
Outlook Recovery
Add Outlook PST Files & Folder
Preview all Elements of PST Files
Dual Scanning Mode
Export to PST, EML or MSG

Frequently Asked Questions

Listed Commonly Asked Questions and Answers

What Clients Say

I used SysTools PST Compress tool for the first time ever and I am really satisfied with the results. I used the tool to shrink my 20GB PST file and it just reduced the size in very short time span. I would like to thank the developer team.

Thomas Dikrose, Sweden

PST file shrinker is the perfect tool that I was looking for. It works flawlessly to compress PST file without losing any data. Totally satisfied with the results. Cheers to the developers!

Dan Torreto, Tokyo

I am completely contented with the performance of this software to Compact PST files. The tool got me rid of all the trouble that I was having due to my large Data file. And the best part is that I didn’t lose any data. Thanks Guys!

Nicole James, USA

I was having a really bad time managing large PST files in my Outlook. This tool is the best choice to compress multiple PST files at once and also saved me a lot of time. I’m really impressed with the efficiency of this PST file compress tool.

Michael Morrison, Europe

PST Compact Tool is the best choice for those users who want to reduce their Outlook data files without any hurdles. This tool works with ease in order to shrink PST file.

Tim Butler, Europe

Had an amazing experience using this Compress PST Files Tool. It worked really well for me. I downsized all my data without any modification. Thanks to the developers!

Ben Show, UK

This Compact PST files tool helped me a lot whenever I had to share an important file through the network connection. Thank You!

Mark, Hongkong

We are really impressed with the preciseness of Shrink PST tool. It helped us convert multiple number of PST files at once which was quite time saving, thanks to its Add Files and Folder facility.

Soniya Sharma, India

This is it !!! If you want to downsize your large Outlook Data files into compacted PST files in smaller sizes, then you can definitely try this !! I did the same & It made upto my expectations!! Thanks SysTools

Charls Stewert, Europe

I was having a lot of problems with my large PST file library, I came across this PST Compact software while surfing on the internet. All my efforts made upto my expectations to compress PST files!! Worth it !!

Roger, Norway

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